/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMBlueprintUtils.h
Call a function for each valid rig unit struct
static void ForAllRigVMStructs ( [TFunction](API\Runtime\Core\GenericPlatform\TFunction)< void([UScriptStruct](API\Runtime\CoreUObject\UObject\UScriptStruct) *)> InFunction )